Rank: 93 based on 575 downloads (last 30 days) and 2 files submitted
photo

Christian Wuerslin

E-mail
Company/University
University of Tuebingen, University of Stuttgart

Personal Profile:
Professional Interests:

 

Watch this Author's files

 

Files Posted by Christian View all
Updated   File Tags Downloads
(last 30 days)
Comments Rating
29 Apr 2013 Screenshot Livewire (Intelligent Scissors) ROI Creation Implementation of the livewire algorithm for intelligent ROI drawing. Can be used instead of ROIPOLY Author: Christian Wuerslin delineation, livewire, roi, gui, roipoly, intelligent scissors 109 1
  • 5.0
5.0 | 1 rating
24 Apr 2013 Screenshot Imagine 4D/3D image visualization and evaluation GUI. Author: Christian Wuerslin 3d, evaluation, image analysis, 4d, image, 3d image 466 9
  • 5.0
5.0 | 4 ratings
Comments and Ratings by Christian View all
Updated File Comments Rating
06 Apr 2013 Imagine 4D/3D image visualization and evaluation GUI. Author: Christian Wuerslin

Hi Jiro,

OK, I think I'm starting to get the idea of the difference between app and function :). So the next version of the app will simply return the figure handle to comply with the specs.

Thanks for the publicity <3

05 Apr 2013 Point Processing Techniques without using inbuilt functions computes image negative,basic thresholding,contrast stretching,graylevel slicing with/without back Author: yagnesh

Hi again,

no worries. What you did is not a mistake after all, it is correct. However, if you are planning on continue working with Matlab in the future you can save yourself a lot of effort by understanding what makes Matlab different from other languages.

Cheers, Christian

05 Apr 2013 Imagine 4D/3D image visualization and evaluation GUI. Author: Christian Wuerslin

Hi Jiro,

wow, thanks for the thorough investigation. Would have taken me forever to figure that out. Well, I was trying to give people the possibility to add arbitrary plots (e.g. quiver, lines) to the axes and thus introduced the axes handle output. Since the axes are destroyed when the panel leyout is changed, I disabled this feature when the axes handles are returned. I guess I have to think of something different for the app. Thanks for your suggestions!

Cheers,

Christian

04 Apr 2013 Imagine 4D/3D image visualization and evaluation GUI. Author: Christian Wuerslin

Hi Jiro,

thanks for the feedback and making me aware of the bug. I can't test it at the moment and I am a bit puzzled why this error ocurres since the app uses the same m-file as the normal submission, which works fine (at least for me). I'll fix it as soon as I get to my 2012b workstation.

04 Apr 2013 Point Processing Techniques without using inbuilt functions computes image negative,basic thresholding,contrast stretching,graylevel slicing with/without back Author: yagnesh

Hi Yagnesh,

please be aware, that Matlab is not like C or any other compiled language. Matlab is interpreted at run-time and therefore long scripts (or a lot of loops) are very time-consuming. Matlab solves this by supplying powerful matrix operations. Your code

for i=1:m
for j=1:n
z(i,j)=(G-1)-y(i,j);
end
end

can be simply replaced by

z = (G-1) - y;

What happens is that Matlab automatically detects that y is a matrix of a certain size and returns a a matrix z of the same size. The loops you use are preformed automatically (and way faster). Note that this only works if G is a scalar (in your case) or if G has the same size as y.
The same applies to all loops in your submission. Hope this helps you in future projects.

Comments and Ratings on Christian's Files View all
Updated File Comment by Comments Rating
01 May 2013 Livewire (Intelligent Scissors) ROI Creation Implementation of the livewire algorithm for intelligent ROI drawing. Can be used instead of ROIPOLY Author: Christian Wuerslin Marin, Valeria

buen material

18 Apr 2013 Livewire (Intelligent Scissors) ROI Creation Implementation of the livewire algorithm for intelligent ROI drawing. Can be used instead of ROIPOLY Author: Christian Wuerslin Ziad Ghafuri, Jehan

12 Apr 2013 Imagine 4D/3D image visualization and evaluation GUI. Author: Christian Wuerslin Bose, Arindam

06 Apr 2013 Imagine 4D/3D image visualization and evaluation GUI. Author: Christian Wuerslin Wuerslin, Christian

Hi Jiro,

OK, I think I'm starting to get the idea of the difference between app and function :). So the next version of the app will simply return the figure handle to comply with the specs.

Thanks for the publicity <3

05 Apr 2013 Imagine 4D/3D image visualization and evaluation GUI. Author: Christian Wuerslin Doke, Jiro

Yes, I think what you're doing makes sense if people are using your app from the command line. The App, on the other hand, is used through the Apps tab, so there won't be a use case of having an output argument anyway. Because of that, I think you can just remove that capability when packaging.

Great tool. BTW, I highlighted your entry on the File Exchange Pick of the Week:

http://blogs.mathworks.com/pick/2013/04/05/3d-image-viewer/

Top Tags Applied by Christian
gui, image processing, 3d, 3d image, 3d image viewer
Files Tagged by Christian View all
Updated   File Tags Downloads
(last 30 days)
Comments Rating
29 Apr 2013 Screenshot Livewire (Intelligent Scissors) ROI Creation Implementation of the livewire algorithm for intelligent ROI drawing. Can be used instead of ROIPOLY Author: Christian Wuerslin delineation, livewire, roi, gui, roipoly, intelligent scissors 109 1
  • 5.0
5.0 | 1 rating
24 Apr 2013 Screenshot Imagine 4D/3D image visualization and evaluation GUI. Author: Christian Wuerslin 3d, evaluation, image analysis, 4d, image, 3d image 466 9
  • 5.0
5.0 | 4 ratings

Contact us